1

If its on the:
Outside it could be a bursitis called trchanteric bursitis, especially if it's tender when u touch it. Aleve (naproxen) 2 tablets twice daily may help. That would likely help anyway as long as you have no contraindication. Good luck, see doc if worsens.
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2

Ask around:
Try lands end or osh kosh. Walmart/wrangler i know has pants for husky kids. Try an internet search and see what companies come up that may suit you.
Other suggestions are to evaluate why this child is overweight and see what can be done to improve the health side of it.
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5

Vitamin D:
In children whose bones are growing, bow leggedness is a sign of vitamin d deficiency.
They also may have a rachitic rosary on their chest. Xrays of the hands shown widening of the growth plates due to lack of vitamin d and poor absorption of calcium.
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9

Yes:
Pain is usually an indicator that something is causing damage to the body. You may have weak ligaments on the outside of the ankles causing the pain. There are other possibilities as well. You should have this evaluated by a physician. It can likely be treated with non-invasive measures (exercise therapy, etc.).
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